how to define a function inside a function?

hello i hava defined a function:

function jj= jj1(C1, C2, C3, C4, k, q, P,gg, x) jj = C1*cos(k*x)+C2*sin(k*x)+C3*x+C4+gg

the thing is that gg is also a function:

gg1=gg(q,P,x) gg1=q/(2*P)*x^2

obviously this is most likely to be wrong because I have no idea how to do it. Can anyone give me some help please. i put the editor as attachemnent.

[Stephen23]

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Answer 1

[Titus Edelhofer]

Hi,

if gg is a function you will need to create it and pass to jj1. You can e.g. create an anonymous function:

gg = @(q,P,x) q./(2*P)*x.^2;
% now call jj1:
result = jj1(C1, C2, C3, C4, k, q, P, gg, x);
% and inside jj1:
gg1 = gg(q, P, x);

or you create a seperate .m file:

function gg1 = gg(q, P, x)
gg1 = gg(q, P, x);

and now pass the function handle to jj1:

result = jj1(C1, C2, C3, C4, k, q, P, @gg, x);

Titus

[Nadia Bica]

thank you